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64444412010 = 23511195286097
BaseRepresentation
bin111100000001001011…
…111011000001101010
320011100020112022212110
4330001023323001222
52023440232141020
645334431223150
74440664315056
oct740113730152
9204306468773
1064444412010
1125370210640
12105a6377ab6
13610046cc94
143194c4cc66
151a22a108e0
hexf012fb06a

64444412010 has 32 divisors (see below), whose sum is σ = 168727188672. Its totient is φ = 15622887680.

The previous prime is 64444411963. The next prime is 64444412047. The reversal of 64444412010 is 1021444446.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97642719 + ... + 97643378.

It is an arithmetic number, because the mean of its divisors is an integer number (5272724646).

Almost surely, 264444412010 is an apocalyptic number.

64444412010 is an abundant number, since it is smaller than the sum of its proper divisors (104282776662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64444412010 is a wasteful number, since it uses less digits than its factorization.

64444412010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195286118.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 64444412010 its reverse (1021444446), we get a palindrome (65465856456).

The spelling of 64444412010 in words is "sixty-four billion, four hundred forty-four million, four hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 195286097 390572194 585858291 976430485 1171716582 1952860970 2148147067 2929291455 4296294134 5858582910 6444441201 10740735335 12888882402 21481470670 32222206005 64444412010